How to modify this code from MATHWORKS website?

I am trying to simulate the following code from mathworks.com:

https://www.mathworks.com/help/radar/ug/fmcw-radar-altimeter-simulation.html

But not with fmcw waveform. I want to simulate this with the following waveform as altimeter waveform.

h = phased.PhaseCodedWaveform;
h.SampleRate = 100000000;
h.Code = 'Barker';
h.ChipWidth = 2e-08;
h.NumChips = 13;
h.PRF = 50000;
h.NumPulses = 1;

But i don't understand how to modify the whole code and other parameters according to this waveform